The new Naked Angels production (by Seth Moore, with terrific music by the Lobbyists) feels like a sea chanty come to life. Open the doors to the South Street Seaport Museum’s Melville Gallery, and, on a cozy set decked in fishnets and burlap, actor-musicians in knickers and leather vests fiddle, stomp, and sing like sailors’ ghosts having a party. The show tells the story of Percy (Tommy Crawford), who grows up to be Gravesight (Will Turner), “the greatest harpooner that ever lived.” He falls in love with the play’s lone female character (Eloïse Eonnet), who refuses to tell him her name, is referred to as Sea, and is quickly turned into a maddening metaphor. The script, an earnest mishmash of nautical hoo-ha, features a character named Bartleby and lines like “Aye, it’s the weight of death.” But—rigga-tigga-tum-da-yo—the joyful hullabaloo is hard to resist. It’s exactly what you hope might be happening after hours at the South Street Seaport.